There's an interesting idea in this film, as we watch four people over the same three days while their experiences converge into one story. But the plot is riddled with holes and filmmaker Clarke strains to hold it together.

Four pals go their separate ways for a fateful weekend. Shannon (Lovibond) is struggling with dark emotions as her parents split up, but her friends seem too busy to listen. Cass (Egerton) is flying to New York for an important audition and also to lose her virginity to an internet friend, but neither go as planned. Kerrys (Warren-Markland) is the loudest member of her boisterous family, clashing with her brother (Chillin) while her girlfriend (Fielding) cheers her on. And Jo (Roberts) is stuck working in the family shop through two eventful nights.

Each story strand hinges around TV news reports about a diamond heist that weaves into the film through low-life gangsters, a sleek mystery woman (Ryan) and a bag of loot. Described as a masterful crime, it actually seems pretty slapdash since the normal lives of these four girls derail it so easily. As a result, the film is both contrived and restless, and the nicely played emotional scenes end up as mere melodrama.

We're left with a few solid performances in underwritten roles and a handful of offbeat cameos, including Kevin Smith as a chatty airplane passenger, Eve as a tough-girl street hood and Mandy Patinkin as a famed pianist. But of the central foursome, only Roberts and Lovibond manage to create interesting characters, while the clearly talented Clarke (as Jo's brute of a boss) unsuccessfully tries to steal the show. That he gives himself a prominent "and" casting credit tells us what this film is really about.